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Platinum 0.49ct diamond half-eternity ring, angled detail
Platinum diamond half-eternity ring worn on a hand
Navy London Facets jewellery presentation boxes styled on travertine with cream flowers and champagne ribbon

Platinum 0.49ct Natural Diamond Half-Eternity Ring

£999.99

Thirteen round natural diamonds trace the upper curve of this polished platinum half-eternity ring, bringing a graceful line of light to a timeless design. The diamonds total 0.49ct.
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  • 30 Day Returns

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London Facets Size Guide

FINDING YOUR FIT

For the most reliable fit, ask a jeweller to measure your finger with a proper gauge or measure the inside of a ring worn on the same finger. Band width and profile can affect the result.

These UK, millimetre and approximate US equivalents are a guide. For more measuring advice, read the full Ring Size Guide.

Download the printable A4 ring sizerPrint at 100% and check the 5 cm line before measuring.

Swipe the chart sideways to see all measurements

UK size Inside diameter (mm) Inside circumference (mm) Approx. US size
H 14.9 46.8 4
I 15.3 48.1 4 1/2
J 15.7 49.3 5
K 16.1 50.6 5 1/2
L 16.5 51.8 6
M 16.9 53.1 6 1/2
N 17.3 54.3 7
O 17.7 55.6 7 1/2
P 18.1 56.9 8
Q 18.5 58.1 8 1/2
R 19.0 59.7 9
Product Details

A polished platinum half-eternity ring set with thirteen round natural diamonds totalling 0.49ct. Available in selected UK ring sizes.

Product details

  • Metal: platinum
  • Diamonds: thirteen round natural diamonds
  • Total diamond weight: 0.49ct
  • Diamond grade: G colour, SI1 clarity
  • Approximate item weight: 3.2g
  • Currently stocked UK ring sizes: H, I and O

Please choose an available ring size before ordering. Contact us if you need guidance on fit.

Delivery & Returns

Free UK delivery and a 30 day returns window are available for this piece. See the delivery and returns policies for full terms.

Warranty & Care

Your jewellery is covered by our five-year warranty. To help keep it looking its best, store it separately when not being worn and avoid contact with chemicals, perfumes and household cleaning products.

Oval lab-grown diamond ring worn on a hand

Finding your fit

A little guidance. A more comfortable fit.

Explore UK ring sizes and the printable sizing guide. If you are unsure about a particular ring or size, ask before ordering.

Explore the ring size guide

Personal assistance

Questions about a piece, its materials or fit? Ask London Facets.

Personal assistance

London Facets

Jewellery with a personal touch.

With roots in London’s Hatton Garden jewellery quarter, London Facets brings a personal, considered approach to choosing jewellery.

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